The primary objective of the trial is to investigate whether the add-on of pegylated interferon alfa-2a to a continued treatment with nucleos(t)ide analogues increases the percentage of patients who have significant decrease (≥ 1log10) of HBs antigen after 48 weeks.

170 Patients with chronic hepatitis B, HBe antigen negative, already being treated with an oral antiviral regimen and having a nondetectable viral load for at least 12 months are included.

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01524679